Re: [libvirt] [libvirt PATCH] 802.1Qbh: Add support for IFLA_VF_MAC

From: Roopa Prabhu<roprabhu(a)cisco.com> Current code does not pass VM mac address to a 802.1Qbh direct attach interface using IFLA_VF_MAC. This patch adds support in macvtap code to send IFLA_VF_MAC netlink request during port profile association on a 802.1Qbh interface. Stefan Cc'ed for comments because this patch changes a condition for 802.1Qbg

802.1Qbh support for IFLA_VF_MAC in enic driver has been posted and is pending acceptance at http://marc.info/?l=linux-netdev&m=129185244410557&w=2 Signed-off-by: Roopa Prabhu&lt;roprabhu(a)cisco.com&gt; Signed-off-by: David Wang&lt;dwang2(a)cisco.com&gt; Signed-off-by: Christian Benvenuti&lt;benve(a)cisco.com&gt; --- src/util/macvtap.c | 59 ++++++++++++++++++++++++++++------------------------ 1 files changed, 32 insertions(+), 27 deletions(-) diff --git a/src/util/macvtap.c b/src/util/macvtap.c index 4345d97..96df301 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -1031,19 +1031,8 @@ doPortProfileOpSetLink(bool nltarget_kernel, nla_put(nl_msg, IFLA_IFNAME, strlen(ifname)+1, ifname)< 0) goto buffer_too_small; - if (macaddr&& vlanid>= 0) { + if (macaddr || vlanid>= 0) { struct nlattr *vfinfolist, *vfinfo; - struct ifla_vf_mac ifla_vf_mac = { - .vf = vf, - .mac = { 0, }, - }; - struct ifla_vf_vlan ifla_vf_vlan = { - .vf = vf, - .vlan = vlanid, - .qos = 0, - }; - - memcpy(ifla_vf_mac.mac, macaddr, 6); if (!(vfinfolist = nla_nest_start(nl_msg, IFLA_VFINFO_LIST))) goto buffer_too_small; @@ -1051,13 +1040,30 @@ doPortProfileOpSetLink(bool nltarget_kernel, if (!(vfinfo = nla_nest_start(nl_msg, IFLA_VF_INFO))) goto buffer_too_small; - if (!nla_put(nl_msg, IFLA_VF_MAC, sizeof(ifla_vf_mac), -&ifla_vf_mac)< 0) - goto buffer_too_small; + if (macaddr) { + struct ifla_vf_mac ifla_vf_mac = { + .vf = vf, + .mac = { 0, }, + }; - if (!nla_put(nl_msg, IFLA_VF_VLAN, sizeof(ifla_vf_vlan), -&ifla_vf_vlan)< 0) - goto buffer_too_small; + memcpy(ifla_vf_mac.mac, macaddr, 6); + + if (!nla_put(nl_msg, IFLA_VF_MAC, sizeof(ifla_vf_mac), +&ifla_vf_mac)< 0) + goto buffer_too_small; + } + + if (vlanid>= 0) { + struct ifla_vf_vlan ifla_vf_vlan = { + .vf = vf, + .vlan = vlanid, + .qos = 0, + }; + + if (!nla_put(nl_msg, IFLA_VF_VLAN, sizeof(ifla_vf_vlan), +&ifla_vf_vlan)< 0) + goto buffer_too_small; + } nla_nest_end(nl_msg, vfinfo); nla_nest_end(nl_msg, vfinfolist); @@ -1402,6 +1408,7 @@ getPhysfn(const char *linkdev, static int doPortProfileOp8021Qbh(const char *ifname, + const unsigned char *macaddr, const virVirtualPortProfileParamsPtr virtPort, const unsigned char *vm_uuid, enum virVirtualPortOp virtPortOp) @@ -1411,6 +1418,7 @@ doPortProfileOp8021Qbh(const char *ifname, # ifndef IFLA_VF_PORT_MAX (void)ifname; + (void)macaddr; (void)virtPort; (void)vm_uuid; (void)virtPortOp; @@ -1426,7 +1434,6 @@ doPortProfileOp8021Qbh(const char *ifname, bool nltarget_kernel = true; int ifindex; int vlanid = -1; - const unsigned char *macaddr = NULL; rc = getPhysfn(ifname,&vf,&physfndev); if (rc) @@ -1456,7 +1463,7 @@ doPortProfileOp8021Qbh(const char *ifname, /* Association timed out, disassociate */ doPortProfileOpCommon(nltarget_kernel, NULL, ifindex, NULL, - 0, + vlanid, NULL, NULL, NULL, @@ -1470,7 +1477,7 @@ doPortProfileOp8021Qbh(const char *ifname, case DISASSOCIATE: rc = doPortProfileOpCommon(nltarget_kernel, NULL, ifindex, NULL, - 0, + vlanid, NULL, NULL, NULL, @@ -1545,9 +1552,8 @@ vpAssociatePortProfileId(const char *macvtap_ifname, /* avoid associating twice */ if (vmOp == VIR_VM_OP_MIGRATE_IN_FINISH) break; - rc = doPortProfileOp8021Qbh(linkdev, virtPort, - vmuuid, - ASSOCIATE); + rc = doPortProfileOp8021Qbh(linkdev, macvtap_macaddr, + virtPort, vmuuid, ASSOCIATE); break; } @@ -1594,9 +1600,8 @@ vpDisassociatePortProfileId(const char *macvtap_ifname, /* avoid disassociating twice */ if (vmOp == VIR_VM_OP_MIGRATE_IN_FINISH) break; - rc = doPortProfileOp8021Qbh(linkdev, virtPort, - NULL, - DISASSOCIATE); + rc = doPortProfileOp8021Qbh(linkdev, macvtap_macaddr, + virtPort, NULL, DISASSOCIATE); break; }